Artificial fuel



UNITED STATES PATENT OFFICE.

ISIDORE C. BANDMAN, OF ATLANTA, GEORGIA.

ARTIFICIAL FUEL.

SPECIFICATION forming part of Letters Patent No. 405,865, dated June 25,1889.

Application filed August 30, 1888. Serial No. 284,191. (No specimens.)

To aZZ whom it may concern/.-

Be it known that I, IsmoEE C. BANDMAN, of Atlanta, in the county ofFulton and State of Georgia, have invented certain new and usefulImprovements in Artificial Fuel; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same. My invention relates to an improvement inartificial fuel, and the object and nature of the invention will befully set forth hereinafter, and particularly pointed out in the claim.The invention consists of a new article of manufacture in the form of ahardened cake of artificial fuel composed of coarse lump coal sur oundedby a mixture of rosin, sawdust, and pine needles, preferably mixed andprepared in the following manner, viz: A desired quantity of rosin isfirst melted. A proportionate quantity of sawdust, pine needles orcones, and, if desired, a quantity of shavings or splinters of wood, arethen added to the melted rosin, and when the mixture is sufficientlythick a proportionate quantity of finely-powdered coal or coal-dust isadded to the mixture, which is thoroughlystirred to evenly distributethe ingredients. The mixture can then be poured into suitable moldscontaining one ormore lumps of coarse coal, so that when hardened thelump coal will be surrounded, or the lump coal can be stirred in withthe mixture and evenly distributed throughout the same, the compositionbeing then prepared for market by forming the same into hardened cakesof suitable sizes for commercial purposes, and with the lump coal in thecake surrounded by other ingredients. The

rosin and pine-needles firmly unite and weave the mass together andaround the lump coal, and thereby prevent the coal from dropping out andthe cakes from crumbling and breaking.

In some instances heretofore fuel has been composed of sawdust, coal orcoke, and tar,

pitch, or rosin, coarse sawdust, paraffine, and anthracite coal, or acombination of stick wood and pine-burrs united by rosin and kerosinepoured over the same when liquified; but these are different from myinvention, as my composition is far more effective and produces a betterresult and is composed of different ingredients arranged in a differentmanner to co-operate to a greater advantage.

My fuel can be easily and quickly ignited and will burn readily,although not too quickly, and the heat generated is exceedingly steadyand intense in proportion to the amount of fuel. The article is veryuseful where it is desired to produce a hot fire on a very short notice,such as for boiling water, &c.,in case of sickness, (be. WVhen beingconsumed, the rosin, sawdust, and pine-needles first ignite and serve toignite the powdered coal, which generates sufficient heat, inconjunction with the other burning ingredients, around the coarse lumpcoal to ignite the same, which will burn for a great length of time,giving out intense heat.

\Vhat I claim is- As a new article of manufacture, a hardened cake offuel composed of a core or interior of one or more large lumps of coaland a surrounding igniting composition consisting, essentially, of amixture of rosin, sawdust, pineneedles, and powdered coal, thepine-needles and rosin firmly uniting the composition surrounding thecoal and preventing the cake from crumbling and breaking, thesurrounding composition first igniting and generating sufficient heat toignite the lump coal.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

ISIDORE C. BANDMAN.

V itn esses:

E. C. DUFFY, O. M. WERLE.

